Since the automotive wiring harness is directly affected by mechanical vibration, temperature changes, scratches, and oil, and water erosion, long-term use is prone to damage to the wiring harness, disconnection of the wire ends, or poor contact, which requires maintenance and replacement of wires, plugs, relays or the whole vehicle wiring harness. The precautions when installing the car wiring harness are as follows:
1. The automobile wiring harness should be fixed with clamps or wire clips to avoid loosening or wear.
2. The wiring harness should not be pulled too tight, especially at the corners, it should be protected by rubber sleeves when bypassing acute angles or passing through metal holes, otherwise, it is easy to wear the wiring harness and cause a short circuit, and burn the whole vehicle wiring harness. Risk of fire.
3. When connecting electrical appliances, they should be wired correctly according to the connector specification, shape, wire color, or the color of the sleeve at the connector. If it is difficult to distinguish the head and tail of the wire, the test lamp can generally be used to distinguish it, and the test-fire method should not be used to distinguish. Because in the power supply system, the fire test method is easy to burn out the wires.